<a (click)="openLightGallery()" nz-popover [nzContent]="altMsg">{{images.length}}</a>
<div [id]="idPrefix + eleId" style="display:none">
    <a *ngFor="let image of images" class="img-item" href="{{imgHostname+image}}">
        <img src="{{imgHostname+image}}"/>
    </a>
</div>
